Fixed toolbar button positions for player 2, fixed toolbar width.
Added "display_name" for ObjectBase and all the creatable objects.
Added tooltip_object, update_tooltip(), gfx_render_gui_tooltip() and some dummy tooltips.
Added more tooltips.
Replaced ObjectPlayer2* base.
Removed buy/build toolbar icons when the time is up.
Synchronized tool ids with object ids.
Added "force" parameter to ObjectBase.command_destroy() to destroy an object by player 2.
Updated todo.